George s



G. S. HILTZ.

lNKING MECHANISM FOR PRINTING TELEGRAPH RECEIVERS.

APPLICATION FILED JULY 2l.-I9l6.

1 ,3 1 3,295. Patented Aug. 19,1919.

TI"! COLUMBIA PLANOGRAPH cm. WASHINGTON, n. C4

UNITED STATES PATENT OFFICE.

GEORGE s. HILTZ, OF NEW YoEK, N. Y.

INKING MECHANISM FOR PRINTING-TELEGRAPH RECEIVERS.

T 0 all to hom it may concern:

Be it known that I, GEORGE S. Hmrz, a citizen of the United States, residing at New York, in the ounty of Kings and State of New York, havev invented certain new and useful Improvementsin Inking Mechanism for Printing-Telegraph Receivers, of which the following is a full, clear, and exact description.

The invention which forms the subject of this application relates to inking mechanism for printing telegraph receivers or tick ers, and in its preferred form is a species of the generic invention described and claimed in my prior Patent No. 1,086,049, dated February 3, 1914. Its chief object is to provide a mechanism which shall require very little power for operation and which will apply the ink more evenly across the type-wheel inking-roller. To these and other ends the invention consists in the novel features of construction and combinations of elements hereafter described.

One form of the invention is illustrated in the accompanying drawing, in which Figure 1 is a side view of the inking mechanism, showing the rotary type wheel,

the inking roller in rolling contact therewith, the stationary ink reservolr, and the movable doctor roll for taking ink from the \IGSBIVOlI and applying it to the inking roller.

Fig. 2 is a plan view of the same, showing also the means provided to reciprocate the inking roll axially.

Fig. 3 is a detail side view showing the doctor roll in ink-receiving contact with inksupplying device, in the present instance a fibrous wick or brush, connected with the ink reservoir.

The type wheel, composed of two type disks 10, is fixed on a shaft 11 which is rotated, by gears 12, 13, under the control of an escapement, not shown. The gear 13, loose on shaft 14, is driven by frictional connection with one end of a spiral spring (not shown) in the barrel 15. The other end of the spring is attached to the shaft 14, and the latter is rotated (at each printing operation) to tension the spring by mechanism fully described in my prior patent, above mentioned, said mechanism including. a ratchet 16. The shaft and ratchet are bered 22 and 25, respectively, in the patent referred to. Fixed on the shaft is a fly wheel 17. V

Specification of Letters Patent. V Patented Aug; 19, 1919. Application filed July 21, 1916. Serial No. 110,451.

The inking roll 18, in rolling contact with the type wheel, is rotatably mounted in the arms of a U-shaped frame 19 pivoted loosely on a short shaft 20, parallel to the axis of shaft 14'; the frame being so proportioneda's to let the roll bear on-the type wheel with a pressure which is light but at the same time suflicient to afford adequate inking of the type, as will be readily understood. The frame mentioned is also capable of sliding motion longitudinally of the supporting shaft, and is actuated by a cam 21, fixed on the shaft and having two inclined faces cooperating with fingers or pins 22 extending inwardly from the two sides of the frame. The shaft and cam are rotated by means de. scribed hereinafter.

The tubular ink-reservoir 23 is parallel to and above the inking roller 18, and is provided, above the center of the roller, with a fibrous brush or wick 24, supplied with ink from inside the reservoir by capillary attraction. The reservoir is filled through asmall funnel 25.

Between the inking brush 24 and the inking roller 18 is a light doctor roll 26, pivoted to rotate freely on a stem 27 fixed in the outer end of the horizontal arm of a bell-crank lever 28 fulcrumed on a stud 29 projecting from a bracket 30 on one of the side frames 30 of the machine. pending arm of the bell-crank is provided with a long finger 31 extending into the path of a cam-stud 32 on the adjacent side of the fly wheel 17. Then each time the stud 32, revolving about the axis of shaft 14 in the direction of the arrow, engages the finger, the bell-crank lever will be swung clockwise, thereby bringing the doctor roll 26 into' contact with the ink-saturated brush 24. When the stud passes the pin the bell-crank swings back, bringing the doctor roll again into rolling contact with the inking roller 18, so that as the latter rotates and slides axially the ink received by the doctor roll from the brush will be applied to and be distributed over the inking roller.

If the ink reservoir 23 is more than half filled with ink and, the machine happens to be turned on its side for any length of time, as is liable to be the case when it is carried from one place toanother, the ink may run out of the filling funnel 25. Any kind of a stopper for the latter inevitably becomes smeared with ink and is therefore objection The de- Y the main reservoir.

able. Accordingly 'I provide a normally empty reservoir into which the ink from the full reservoir will drainiwh'en the inachine is turned on either side. Such a reservoir is shown at 23 ,'in the'forin of a closed tube arranged above and parallel to the main reservoir and provided with ports 23 23, (shown in dottedlines) at its ends to communicate with the former. Then if the machine is turned on its side the surplus ink will run slowly into reservoir 28 through the lower of the two ports while the air passes out through the upper into It will be understood that the ink'is thick or viscous in consistency.

Depending from the bell-crank lever 28 is a hook-pawl 33, cooperating With a small ratchet Wheel 3%.011 the cam shaft 20 and held in engagement with the ratchet by gravity. The oscillations imparted to the bell-crank bythe cam-stud 32, as described above, raises and lowers the pawl and so rotates the cam shaft and the cam 21, thereby shifting the carrier or frame 19 and the inking roller 18 carried bythe former.

It is to be understood that the invention is not limited to the specific construction herein illustrated and described, but can be embodied in other forms Without departure from its proper spirit.

I claim: 7

1. In an inking mechanism for printing telegraph receivers, in combination, a rotary type wheel, an axially shiftable inking roller in rolling contact with the type wheel, an ink reservoir having an iiilesupplying device adjacent to the inking roller, a doctor roll in rolling contact with the inking roller, a lever carrying the doctor roll, means for rocking-the lever periodically to carry the doctor roll into ink-receiving contact with the ink-supplyingdevice, a cam associated with the inking roller to shift the same axially, and means actuated by the said-lever to actuatethe cam and thereby shift the inking roller.

2. In an inking mechanism for printing telegraph receivers, in combination, a rotary type wheel, an axially shiftable inking roller in rolling contact with the typewheel, an ink reservoir having an ink-supplying device adjacent to the inking roller, a doctor roll in rolling contact with the ink ing roller, a lever carrying the doctor roll, and adapted to shift the same into inkreceiving contact with said ink-supplying device, a cam shaft having a cam connected with the inking roller to shift the same axially, a ratchet on the cam shaft, a pawl carried by the lever and engaging the ratchet to rotate the same, and means to actuate the lever periodically.

In testimony whereof I hereunto aflix my signature.

GEORGE S. HILTZ.

Copies of this patentmay be obtained for five cents each, by addressing the Commissioner of Patents wuhington, D. C." 

